Catalyst (translation from German)

If I remember correctly from chemistry class - I was never good at science, that's why I became a lawyer - a catalyst is a substance that starts a chemical reaction and comes out of it unchanged. Then the girlfriend of one of my brothers at the time would have been such a catalyst. I would like to explain below how I came to this conclusion.

I would like to briefly introduce myself and clarify some things about this story. It actually happened in my life like this, but I have changed names and details to conceal identities. But first to me, I would like to call myself Ute. I am now forty-seven years old, have dark blonde hair, have always been very sporty, and I am slender.

At the time of my story, I was forty-two years old and already a mother of three children. My husband and I had become self-employed, but things didn't go so well. We had a lot of problems and it affected our marriage; we were both irritable, we argued, and sex was rare. Things used to be completely different.

We were never obsessed with sex. Everything went in the usual 'normal' range. Well, maybe not quite. I had 'started' early and I really liked French from the start. Yes... even with swallowing. I still like that a lot to this day. I thought women most clearly felt what power she had over the man and that she gave him pleasure. That was quite a kick for me. I was also very excitable vaginally, and liked to be filled, even with one hand, if you know what I mean.

Maybe everything would have turned out differently, if we had had more courage in some areas back then. I remembered how we were lying in bed exhausted and philosophizing about a 'second cock'. Another time, as I squatted over him with my legs spread, I teased my husband that I was going to make him wet, which he received with surprising enthusiasm. But I certainly didn't want that in bed, and in the bathroom I could almost hear a child knocking on the door and asking what mom and dad were doing. Shortly afterwards, the stress really started and our sex life stopped completely. I didn't even miss sex under all the pressure; I just didn't feel like it anymore. Who knew how everything would have turned out, if we had been braver in those two moments?

We lived in a small town and my brothers also lived there. One of my brothers had a girlfriend who was pretty sneaky, but that only came out later. I would like to call this friend, Petra. It has to be said that my brother always gravitated towards much younger women. He was three years older than me, so he was forty-five at the time and Petra was thirty-four. Petra was a woman with pronounced curves; she wasn't fat, but had a D-cup breasts and wide hips, so she was very feminine. Her hair color was actually dark blonde, too, but she dyed it often and back then, it had a red glow, as it framed her elongated, somewhat-pointed face. She was also about the same height as me.

So it was a hot summer day, summer holidays and Friday, which would become important as the day went on. My kids were on vacation and were at grandma's to be pampered, my husband was working in the office, as usual. Then Petra got in touch and asked if we could go shopping in the afternoon; she needed lingerie and wanted my expert advice. At least, that was what she said. That suited me just fine because I actually wanted to buy some bras, so I agreed.

Petra picked me up, and we drove in her car to the local lingerie store. We looked and searched and got advice. Petra, I thought, had terrible taste. What she liked, I found slutty. What I liked, she found boring. But at some point, we made our decisions. I stuck with white and black, she picked something in purple; well, our tastes were different.

Afterwards, we took a break in a bistro and Petra bought me a Prosecco. Finally, she said she wanted to buy another dildo in a sex shop here.

"Would I like to come with you?" I had to admit that I had never been to a sex shop before. I had never purchased any supplies. In the beginning, I had gotten along quite well without it, and when the husband wasn't there, my hands and fingers helped me.. Besides, I was suspicious of a store like that-- there were definitely strange men hanging around there, who looked at me askance, and got a completely wrong impression of me.

Petra bought another Prosecco, and I finally let myself be persuaded. I was a bit curious and had a good excuse to go to the store... I was just accompanying Petra... and waiting in the car, or on the street outside in the heat, would have been stupid, too.

My heart was pounding as we entered the sex shop. I was lucky-- it was empty. I looked around. On the left side, there was some cheap lingerie that looked terrible. Something skimpy made of faux leather hung next to it. That, too, was more depressing than encouraging. Petra purposefully went to the 'auxiliary aids' section and rummaged through the boxes of dildos.

My goodness, I blushed. What were those things? Huge things, some of which were naturally modeled on a cock.

Petra looked with interest at a box, in which there was a twenty-five-centimeter (ten-inch) long artificial cock in a natural presentation. I had never seen anything like it natural, or otherwise. My first boyfriend was pretty-well hung, but miles away from it; my husband was of normal build. I liked the feeling of being filled (as I had written before), and so the sight of the phallus had an impact on me. I also felt the Prosecco.

Petra put the artificial cock aside and continued to look. What she then held in her hand made me pale. I used to ride equestrian and one would see aroused stallions and their parts 'ready for action'. Petra had found a dildo that was modeled on such a stallion's cock.

She grinned at me and said cheekily, "Awesome, Ute?"

I didn't know what to say. The dildo was infinitely long; I felt uneasy just looking at it. I liked to be filled, but that was too much. Petra laughed and put the 'stallion's cock' away again, and continued rummaging.

I looked around a bit, as if I'd ever come back here...

Magazines and videos were displayed on one side of the store. That wasn't for me. Things got intense, and titles like 'Anale Grande', 'Four Fists for a Hallelujah' and 'Piss Fountain' were rather off-putting.

Petra had made up her mind in the meantime, and came to me with two black dildos about twenty centimeters (eight inches) long. "I'll give you one," she said cheekily to me.

I wanted to reject it, but she remained stubborn. I was uncomfortable arguing about paying for a dildo in a sex shop, but she obviously wasn't. And after all, I wanted to leave this inhospitable place quickly-- so, I finally agreed.

We then drove to my house. Petra suggested sitting in the garden and drinking strawberry daiquiris-- that was her specialty, and I really liked it. It was a bit early in the afternoon, the Prosecco was actually too much for me, but since we couldn't go on vacation, maybe a little relaxation this way wasn't wrong. And I really like them a lot.

I sat outside and Petra mixed the daiquiris. A little later, she came into the garden with the drinks and sat down next to me. Wow... they had it all. In any case, mine had gotten pretty strong. She was in a great mood, joking; it was fun, warm; with me, drinking my daiquiri. I soon felt the effects. I was definitely tipsy, so early in the afternoon-- which was very embarrassing for me.

But Petra laughed and took me in her arms. "You know what, Ute, I'm going to send Michael," -- Michael was my brother -- "a few photos with my new underwear; he should have fun, too. Are you taking photos of me with your cell phone?"

If I were sober, I might have suspected an ulterior motive, but not like that. I agreed.

We went up to the bedroom. Petra took off her clothes and I had to admit that she had a great figure, very feminine, more curved than mine; heavy breasts; large, dark areolas with nipples that were already prominent. She put on the new lingerie, posed and I took photos. Then she said she wanted to really heat up Michael, and took off her lingerie, too, that I should take nude photos of her.

Why not, while we were at it...? Again, if I was sober, I would probably have had questions, but as it was, I giggled tipsily and clicked on my cell phone. Oha... that's where it started...

She lay down on the bed, and spread her legs. It seemed to me that it was already glistening, already a bit wet. I felt a little dizzy and found myself getting a little excited. I had never done anything with a woman, and had always considered myself very 'straight', but the whole thing was very erotic and not without an effect on me.

Petra then upped the ante and said we should also send Thomas, my husband, a few photos like this, of me, not of her. I had never done anything like that before. I refused. But, actually, the idea of posing turned me on. And there was nothing there. It was for my own husband and he saw me naked every day. Plus, it was so hot.

I agreed in a daze, and then, yes, you could say that Petra basically tore off my clothes. Before I knew it, I was completely naked; she pushed me onto the bed and spread my legs. I should actually be posing in the laundry, I thought, vaguely.

No matter, I thought, lying so comfortably in bed and then a shiver ran through my abdomen, a feeling that I hadn't felt in a very long time. I felt a little dizzy and closed my eyes. This only made it worse, and I found myself holding onto the sheets. A very special feeling hit me between my legs. It became moist, very pleasant, very beautiful. It intensified and a tingling sensation built up down there. I opened my eyes and saw Petra lying between my legs, and licking me-- it was her tongue.

She smiled at me and just carried on. I felt so hot and wanted to protest... instead, I felt this feeling that I hadn't felt for so long. I didn't say anything, just moaned loudly in excitement. This really fired up Petra; she penetrated me with the tip of her tongue and then ran her tongue over my clitoris again. She drove me crazy. Oh God... that was so hot, I wanted to defend myself, but I couldn't.

It was so beautiful, missed for so long, and she licked me much more skillfully than my husband. She cupped my pelvis with her hands and stroked me there. It didn't take long before I felt this pulling sensation in my abdomen that you don't know at first whether it's pain or pleasure, it built up and worked its way up. I came so hard my legs were shaking.

"Sweetheart... did you just come?" Petra asked.

I mumbled a moan, "Yes."

"You're still horny, aren't you?" she asked.

I mumbled a quiet, "Yes," again.

She laughed and squatted next to me. With two fingers of one hand, she started thrusting into me; her other hand played with my breasts. It was so beautiful... then I felt even more inside me, there were probably three fingers... I liked that so much...

"Mmmmmh," I said, as it started again. I moaned loudly. I came again. Alcohol-induced disinhibition and desire, that had been thawing for years, broke out.

Petra had shifted herself between my legs again, licked my clit and... the realization of what she was about to do hit me like a shock... trying to insert her whole hand. I went crazy. Being alcohol-relaxed, prepared by two orgasms and really just on the cusp of ecstasy, she hardly met any resistance between my legs. It worked much better than with my husband's hand, which was also much larger.

I heard this rushing sound of great wetness, as her hand gently moved back and forth. I had to be dripping wet. The sound was just awesome, I had always associated it with the situations where I was most excited, I was exhausted... it was so horny, beautiful, gripping me... I was gripped by such a feeling of greatest pleasure just before the pain, I moaned loudly and took a deep breath, my nipples were so hard, it hurt...

Click...

The bedroom door opened...

I opened my eyes and my husband was standing in the doorway. I was shocked and suddenly sober again. Oh my god... I was dripping wet in bed with my legs spread wide and Petra's hand was inside me. I wanted to sink, sink into the ground in shame... I tensed, clenched around her hand... felt it filling me completely, this feeling... and it came so powerfully that I was almost no longer moaning, but screaming. There were several orgasms in a row. When it was over, I opened my eyes.

My husband stood in the doorway, with his eyes wide open, and just said, "Ute, what is that?"

Petra turned around and looked at him, and said cheekily, "What does it look like? I'm fucking your wife... Come"!

A second blow hit me. Petra was in no way embarrassed. Thomas looked at me, questioningly. He was completely perplexed. Me too. Somehow, in my alcohol-addled head, I thought that I could hardly forbid him from joining in if he had just caught me having an affair with my brother's girlfriend. And he could hardly complain to me about infidelity, if he went along with it. As I was drunk, it seemed very logical and a brilliant solution, and an exciting one, too. So, I said in a somewhat hoarse, lust-filled voice, "Thomas, come!"

He didn't need to be told twice. He took off his clothes in a mad rush and stood next to my head. My mouth greedily grabbed his hard, already very wet cock. I then realized the situation that drove me to ecstasy. A hand inside me, a cock in my mouth. This was so awesome. Thomas started thrusting into my mouth; he had never done that before. It turned me on immensely to be used like this by both of them. Neither of us knew each other like this, so lust-driven, uninhibited. Petra's hand moved carefully back and forth between my legs; my husband's cock in my mouth. That was almost unbearable, I moaned loudly again, as much as I could with my mouth full.

Thomas was then moaning loudly, too. The sight and the feeling of being blown, that he had missed for a long time, was too much for him, too. I felt the signs on his cock and knew what was about to happen and looked forward to it. I liked it so much when he came in my mouth. Petra intensified her efforts in my lap and then it shot out of him. It was a lot, a lot, so much that I couldn't swallow it all, and it ran down my chin and dripped onto my neck.

Exhausted, Thomas pulled his cock out of my mouth and said weakly, "My God, you look hot!"

Then I came again. Petra then had mercy on me and carefully pulled her hand out of me after my renewed orgasm. In mock anger, she said, "Fine... I want to come too. Who is going to fuck me now?" She looked invitingly at me and Thomas.

Thomas looked at me, questioningly; I looked at Thomas. Yes, the solution was actually clear. The realization hit me that the solution also excited me. Unbelievable, what was wrong with me? I thought, now all the dams were broken. I looked Thomas in the eyes, and said to him in a somewhat hoarse voice, "Fuck her!"

Thomas looked at me with wide eyes. He wouldn't have expected that from me. And me, neither. But the urges, the completely surreal situation caused my mind to stop and I only thought with my gut.

"You both are awesome...!" Petra said, and positioned herself in doggy style, next to me on our marriage bed. This made Thomas hard again. He walked around Petra, who was busy playing with her clit. Thomas slid quickly and deeply into Petra's pussy. I watched the two of them. Thomas and I looked deeply into each other's eyes, while he pushed into Petra. I saw his lust, he saw mine. It excited us both immensely to drive each other so high. Petra was no competition. She was a tool to satisfy me and my husband. I wasn't jealous. I enjoyed the exciting situation and started playing with myself, while watching.

His wife, who was more reserved, didn't think anything of him fucking someone else, and moreover, she was also excited by it. This drove Thomas wild. He moaned loudly. I rubbed more intensely. Petra also mumbled something incomprehensible, which turned into a long, drawn-out moan; she was obviously close to climax, too. I left my clit alone and started playing with her breasts and nipples, which dangled freely in doggy style. She looked at me, gratefully, and closed her eyes. Her face contorted and her upper body lay down on the bed, butt sticking upwards as her climax hit her, too. Thomas grunted loudly and cummed inside her. The three of us slowly collapsed. We were exhausted.

After a while, Petra looked at the clock. "Shit!" she shouted, "Michael is coming soon, I have to go home... Bye you two and I'll be back again!" She got dressed in no time and left.

Thomas and I lay in bed together, and cuddled, tired. It slowly dawned on me what we had done. We had slept with my brother's girlfriend. And Petra would like to do it again. My husband and I agreed that this had been a slip-up, which while incredibly exciting, was one that we couldn't, and didn't want to, repeat. We couldn't do that to my brother Michael.

But, we wanted to repeat what had happened in a different constellation, and even more. Thomas and I revealed ourselves. Some abysses emerged, but also many similarities. We wanted to try out a lot of things, and definitely repeat what we had just experienced, a threesome with a woman, an FFM... also to try out a 'second cock'... and to make each other 'wet'. But there was an agreement that had to be strictly adhered to-- "Everything is possible together, never behind each other's backs!"

During the weekend that followed, we could hardly get away from each other. We had a lot to catch up on, and many more similar experiences were to follow.

By the way, it ended quite abruptly with Petra. She later tried again to get my husband into bed, but he refused. Then, some time later, it turned out that she was having an affair with another man and the relationship with my brother broke down. I never heard from her again.

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